다이버시티 2 RF 복조기 튜너 MPEG-TS 출력 이중 안테나 DiBcom 칩 DVB-T COFDM 수신기 RX 모듈

특색

• Dual antenna reception, SMA 안테나 인터페이스
• Receiving frequency band: 160메가 헤르츠 ~의 860MHz
• 단일 채널 수신 감도: -97±1dbm at QPSK 8MHz, -98±1dbm at QPSK 6MHz, the sensitivity increases by 3dbm when receiving with dual antennas
• 지원 고속 이동 수신
• 지원되는 매개 변수:
  • IFFT：2케이，8케이
  • 보호 구간: 1/4, 1/8, 1/16, 1/32
  • 독립 단기 치료소：1/2, 2/3, 3/4, 5/6, 7/8
  • 변조 매핑: QPSK, QAM16, QAM64
  • 대역폭: 1.8MHz~8MHz, step 0.1MHz
• The demodulated digital signal output interface is J3 interface (TSI)
• 전원 표시등, work indicator light
• PCBA 무게: 13.4 그램
• 보드 크기: 51mm x 30mm

노트

This demodulation module is pure hardware and does not contain an MCU, so it cannot run independently. It can be used as a plug-in module to output TS streams. You need to design it yourself or use our baseboard to work.

This is a dual antenna receiver that outputs TS stream (physical interface). There is no MCU on the module and it cannot be used alone. Customers buy this module and integrate it into their own products, and they also need to transplant the driver into their own products.

This module itself does not have code and cannot be used alone. An external chip is required to load the firmware into it (similar to the early WiFi modules)

J3 Pin interface defines

The J3 interface is a 2×10 20pin 1.27mm pitch straight pin header, which is used to connect our module and the decoder board. It uses TSI to transmit data. Its signal definition is shown in the table below:

PIN serial number	방향	signal name	설명하다
1	인/아웃	host_bus0	DR2C I2C 데이터
2	인/아웃	host_bus1	DR2C I2C 시계
3	에서	reset_in	DR2C 재설정
4	pwr	GND	signal place
5	pwr	VDD_5V	DR2C 5V power input
6	밖으로	host_bus2	TSI Data0
7	밖으로	host_bus3	TSI 데이터 1
8	밖으로	host_bus4	TSI 데이터 2
9	밖으로	host_bus5	TSI 데이터 3
10	밖으로	host_bus6	TSI 데이터 4
11	밖으로	host_bus7	TSI 데이터 5
12	밖으로	host_bus8	TSI 데이터 6
13	밖으로	host_bus9	TSI Data 7
14	밖으로	host_bus10	TSI Frame Indicator
15	밖으로	host_bus11	TSI 동기
16	밖으로	int_select1	DR2C 모드 선택
17	밖으로	host_bus12	TSI 시계
18	입력	host_bus13	FEC 실패
19	pwr	VDD_3P3V	DR2C 3.3V power input
20	pwr	GND	signal place

Module Mechanical Dimensions

복조기 + Decoder board

자주하는 질문:

Q1: Is the TS output of your demodulation chip serial or parallel?

A1: Parallel.

Q2: Does your module support TS output?

A2: 예. This module J3 contains an output physical interface.

If you need to match it with our decoding baseboard, it not only has HDMI and CVBS output, but also contains an Ethernet port. This Ethernet port supports the output of TS video streams, which can be played on Windows or Linux through VLC player.

Q3: Can I buy a sample of this diversity RF DVB-T demodulator with TS output interface module?

A3: We are happy to provide you with samples. We have to remind you that this is a pure hardware product. In addition to two RF inputs and a J3 interface, there is no separate power supply and video output port, and there is no MCU and firmware on this module, so it cannot be run and tested alone.

If you need to test, please purchase it together with its baseboard (전원 공급 장치, decoding chip and HDMI/CVBS/Ethernet output). See the picture above. When you understand its performance, you can develop your hardware or peripheral circuits, or we are also happy to provide technical support.

Q4: Can you provide me with the source code and driver? I need to program it.

A4: We need to consider your project requirements and purchase volume before we can provide code and source programs. We are happy to cooperate with you.

Q5: Can the DiBcom handle higher-frequency inputs? 그만큼 2.0-2.9 GHz frequency band is available to me.

에이: DiBcom 9090MA only supports 170-860Mhz. Please use frequency down conversion to support 2~2.9Ghz.

More About this product

그만큼 DiBcom 9090MA is a chipset designed for DVB-T (디지털 비디오 방송 – 지구의) 수신. It is commonly used in USB TV tuners, automotive applications, 및 임베디드 시스템. Here’s a detailed overview of its features and setup, particularly for handling TS (전송 스트림) 산출.

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DiBcom 9090MA Overview

1. Core Features:

   • DVB-T Support: Compliant with the DVB-T standard.
   • 높은 감도: Optimized for reliable reception, 도전적인 환경에서도.
   • 다양성 수신: Supports antenna diversity for better signal quality.
   • 전송 스트림 (TS) 산출:
     • Delivers MPEG-2 TS over a variety of interfaces.

2. 인터페이스:

   • I2C Interface: For control and configuration.
   • TS Output:
     • Parallel TS or serial TS modes, selectable based on the application.
     • Outputs MPEG-2 TS for decoding or further processing.

3. 응용 프로그램:

   • Wireless COFDM Video receiver
   • USB DVB-T tuners for PCs and embedded systems.
   • Automotive DVB-T receivers.
   • Digital TV integration in portable devices.

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전송 스트림 (TS) 산출

The DiBcom 9090MA outputs MPEG-2 Transport Streams, which is the standard for digital TV broadcasting. 작동 방식은 다음과 같습니다.:

1. TS Data Format:TS

   • Comprises packets of 188 바이트.
   • Contains video, 오디오, and metadata multiplexed into a single stream.

2. TS Output Modes:

   • Parallel TS:
     • 출력 8 bits of data per clock cycle.
     • Requires more pins but provides faster data transfer.
   • Serial TS:
     • 출력 1 bit per clock cycle.
     • Uses fewer pins but may be slower.

3. Clock Signal:

   • The chipset provides a clock signal to synchronize the TS data output.

4. Control Signals:

   • Data Valid (DVALID): Indicates valid data on the TS bus.
   • 동조: Signals the start of a TS packet.

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DiBcom and TS output Integration Steps

1. 하드웨어 연결:

   • Connect the TS output pins (parallel or serial) to a demultiplexer or decoder.
   • Use an I2C interface to configure the tuner.

2. Configuration via I2C:

   • The 9090MA needs to be configured through I2C commands for:9090MA
     • Channel frequency.
     • 대역폭 (6, 7, 또는 8 메가 헤르츠).
     • TS output mode (parallel or serial).

3. TS Decoding:

   • Feed the TS output to a compatible decoder, such as an MPEG-2 decoder or software-based solution.

4. 소프트웨어 통합:

   • Use Linux DVB APIs (해당되는 경우) for capturing and processing TS data.
   • Applications like VLC 미디어 플레이어 or custom software can decode and display the TS.

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사용 사례

1. USB DVB-T Tuners:USB DVB-T：
   • Combine with a USB interface IC (예를 들어, Cypress EZ-USB) for PC-based TV tuners.
2. Automotive Receivers:
   • Use diversity reception with two or more 9090MA chips for stable reception in moving vehicles.
3. Embedded Systems:
   • Integrate with ARM-based boards to provide DVB-T functionality in custom devices.

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Example Application Circuit

1. 구성 요소:

   • DiBcom 9090MA as the tuner chip.
   • 에이 RF front-end for antenna and signal conditioning.
   • I2C 인터페이스 connected to a microcontroller or CPU.
   • TS output connected to a decoder or USB bridge.

2. TS Output Example:

   • Parallel Mode:
     • Data lines: TS[7:0].
     • Control lines: CLK, DVALID, and SYNC.
   • Serial Mode:
     • Single data line: TS_DATA.
     • Clock and control lines.